81428149314

Names of 81428149314

• Cardinal: 81428149314 can be written as Eighty-one billion, four hundred twenty-eight million, one hundred forty-nine thousand, three hundred fourteen.

Scientific notation

• Scientific notation: 8.1428149314 × 10¹⁰

Factors of 81428149314

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 148

Divisors of 81428149314

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 6 9 18 23 27 31 46 54 62 69 81 89 93 138 162 178 186 207 267 279 414 534 558 621 713 801 837 1242 1426 1602 1674 1863 2047 2139 2403 2511 2759 3726 4094 4278 4806 5022 5518 6141 6417 7209 7921 8277 12282 12834 14418 15842 16554 18423 19251 23763 24831 36846 38502 47526 49662 55269 57753 63457 71289 74493 110538 115506 126914 142578 148986 165807 182183 190371 213867 223479 245551 331614 364366 380742 427734 446958 491102 546549 571113 641601 704969 736653 1093098 1142226 1283202 1409938 1473306 1639647 1713339 2114907 2209959 3279294 3426678 4229814 4419918 4918941 5140017 5647673 6344721 6629877 9837882 10280034 11295346 12689442 13259754 14756823 16214287 16943019 19034163 19889631 21854039 29513646 32428574 33886038 38068326 39779262 43708078 48642861 50829057 57102489 65562117 97285722 101658114 114204978 131124234 145928583 152487171 196686351 291857166 304974342 393372702 437785749 457461513 502642897 590059053 875571498 914923026 1005285794 1180118106 1313357247 1507928691 1770177159 2626714494 3015857382 3540354318 4523786073 9047572146 13571358219 27142716438 40714074657 81428149314
• Sum of all divisors σ(n): 198767416320
• Sum of proper divisors (its aliquot sum) s(n): 117339267006
• 81428149314 is an abundant number, because the sum of its proper divisors (117339267006) is greater than itself. Its abundance is 35911117692

Bases of 81428149314

• Binary: 1001011110101011111101111010001000010₂
• Hexadecimal: 0x12F57EF442
• Base-36: 11EO7U4I

Squares and roots of 81428149314

• 81428149314 squared (81428149314²) is 6630543500703078670596
• 81428149314 cubed (81428149314³) is 539912886208222553968779709371144
• The square root of 81428149314 is 285356.1797368335
• The cube root of 81428149314 is 4334.3587523853

Scales and comparisons

• 81,428,149,314 seconds is equal to 2,589 years, 8 weeks, 3 days, 10 hours, 21 minutes, 54 seconds.
• To count from 1 to 81,428,149,314 would take you about five thousand, one hundred seventy-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 81428149314 cubic inches would be around 361.2 feet tall.

Recreational maths with 81428149314

• 81428149314 backwards is 41394182418
• The number of decimal digits it has is: 11
• The sum of 81428149314's digits is 45
• More coming soon!